Stars, Galaxies, and the Universe

Front

What is the name of baby stars?

Back

Protostars

Front

Why do scientists use light years to measure objects in space?

Back

Because of the vast distances in the galaxy and universe.

Front

What is invisible matter that slows down the expansion of the universe called?

Back

Dark matter

Front

What happens to galaxies that are furthest away?

Back

They are moving faster than closer ones.

Front

What was the first element to form within the universe?

Back

Hydrogen

Front

What is a galaxy?

Back

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

Front

What is a supernova?

Back

A powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is dark energy?

Back

A mysterious force that is causing the acceleration of the universe's expansion.

Front

What are the two main types of galaxies?

Back

Spiral galaxies and elliptical galaxies.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.